public class Book {
    String  title;
    String  author;
    String  pubisher;
    double price;

    public  void showBook(){
        System.out.println("书名：" + this.title + "\t价格：" + this.price + "元\t"
                + "作者：" + this.author +"\t" + "出版社：" + this.pubisher) ;
    }
}
